实验目的：
1、掌握帧中继上部署静态路由技术。
2、通过静态路由实现不同分支之间的通信。
实验拓扑：
实验步骤：
1、依据图中拓扑，通过路由器模拟帧中继交换机，配置如下：
①开启帧中继交换功能
FW-SW(config)#frame-relay switching
②接口开启帧中继封装，并定义为DCE接口
FW-SW(config)#int s0/0 FW-SW(config-if)#no shutdown FW-SW(config-if)#encapsulation frame-relay FW-SW(config-if)#frame-relay intf-type dce FW-SW(config-if)#exit FW-SW(config)#int s0/1 FW-SW(config-if)#no shutdown FW-SW(config-if)#encapsulation frame-relay FW-SW(config-if)#frame-relay intf-type dce FW-SW(config-if)#exit FW-SW(config)#int s0/2 FW-SW(config-if)#no shutdown FW-SW(config-if)#encapsulation frame-relay FW-SW(config-if)#frame-relay intf-type dce FW-SW(config-if)#exit
③编写帧中继转发条目
FW-SW(config)#int s0/0 FW-SW(config-if)#frame-relay route 102 interface s0/1 201 FW-SW(config-if)#frame-relay route 201 interface s0/0 102 FW-SW(config-if)#exit FW-SW(config)#int s0/1 FW-SW(config-if)#frame-relay route 201 interface s0/0 102 FW-SW(config-if)#exit FW-SW(config)#int s0/2 FW-SW(config-if)#frame-relay route 301 interface s0/0 102 FW-SW(config-if)#exit
2、通过部署帧中继技术，使得各个站点直连连通，其中R1为中心点，R2和R3为分支点，配置如下：
R1上
R1(config)#int s0/0 R1(config-if)#no shutdown R1(config-if)#encapsulation frame-relay R1(config-if)#no frame-relay inverse-arp R1(config-if)#frame-relay map ip 192.168.1.2 102 broadcast R1(config-if)#frame-relay map ip 192.168.1.3 103 broadcast R1(config-if)#exit
R2上
R2(config)#int s0/0 R2(config-if)#no shutdown R2(config-if)#encapsulation frame-relay R2(config-if)#no frame-relay inverse-arp R2(config-if)#frame-relay map ip 192.168.1.1 201 broadcast R2(config-if)#frame-relay map ip 192.168.1.3 201 broadcast R2(config-if)#exit
R3上
R3(config)#int s0/0 R3(config-if)#no shutdown R3(config-if)#encapsulation frame-relay R3(config-if)#no frame-relay inverse-arp R3(config-if)#frame-relay map ip 192.168.1.1 301 broadcast R3(config-if)#frame-relay map ip 192.168.1.2 301 broadcast R3(config-if)#exit
测试直连连通性，如下：
R1#ping 192.168.1.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 36/42/60 ms R1#ping 192.168.1.3 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.3, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 16/31/52 ms R2#ping 192.168.1.3 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.3, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 44/68/96 ms
可以看到，直连连通没有问题。
3、部署静态路由技术，使得不同分支之间能够相互通信，配置如下：
R1(config)#ip route 2.2.2.2 255.255.255.255 192.168.1.2 R1(config)#ip route 3.3.3.3 255.255.255.255 192.168.1.3 R2(config)#ip route 1.1.1.1 255.255.255.255 192.168.1.1 R2(config)#ip route 3.3.3.3 255.255.255.255 192.168.1.3 R3(config)#ip route 1.1.1.1 255.255.255.255 192.168.1.1 R3(config)#ip route 2.2.2.2 255.255.255.255 192.168.1.2
此时测试不同分支背后网段能否相互通信，如下：
R1#ping 2.2.2.2 source 1.1.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds: Packet sent with a source address of 1.1.1.1 !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 24/45/64 ms R1#ping 3.3.3.3 source 1.1.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 3.3.3.3, timeout is 2 seconds: Packet sent with a source address of 1.1.1.1 !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 40/42/52 ms R2#ping 3.3.3.3 source 2.2.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 3.3.3.3, timeout is 2 seconds: Packet sent with a source address of 2.2.2.2 !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 48/59/80 ms
测试成功，此实验完成。
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